Posted on May 27th, 2021 by Phill Snel Prof. Jeffrey Siegel | Caution to the Wind: Desperate to reopen and loaded with stimulus cash, schools are spending millions on high-tech purifiers. But are they safe? May 27, 2021 | Mother Jones
Posted on May 27th, 2021 by Phill Snel Prof. Jeffrey Siegel | Ventilation, testing might be keys to safe school reopening during COVID-19: experts May 26, 2021 | Global News
